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Which outcome occurs when a supercritical fluid within a closed-loop power cycle passes through a turbine?

A)Isentropic expansion generates electrical work
B)Vapor desuperheating lowers thermal efficiency
C)Refrigerant subcooling improves volumetric efficiency
D)Thermal cracking increases system pressure

💡 Explanation

Isentropic expansion generates electrical work because the turbine extracts energy from the fluid's expansion, maintaining entropy; therefore work is produced, rather than issues like desuperheating which occur after expansion at different stages within the cycle.

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